RT9644 データシートの表示（PDF） - Richtek Technology

部品番号

コンポーネント説明

一致するリスト

RT9644

ACPI Regulator/Controller for Dual Channel DDR Memory Systems

Richtek Technology 

Preliminary

RT9644/A

Function Block Diagram

RT9644

VDDQ

RT9644

DRIVE4

FB4

REFADJ4

FB3

DRIVE3

FB2

DRIVE2

VIDPGD

+

-

-

+

-

+

-

-

+

+

-

+

Fault

shut_down

FB COMP

+

-

-

+

+

+

-

UV

-

RAMP@

250kHz

OV

OC

+

-

20uA

Digital &

Peripheral Control

Thermal

shut_down

-

+

-

+

+

-

5VSBY

+

-

BOOT

UGATE

PHASE

LGATE

OCSET

DDR_VTT

VDDQ

VREF_IN

GND

S3# S5# P12V 5VSBY VREE_OUT DDR_VTTSNS

RT9644A

PWM4

FB3

DRIVE3

FB2

DRIVE2

VIDPGD

COMP4 FB4

RT9644A

-+

+

+-

-

RAMP@

2sh50iftkH90z

-

+

-

+

FB COMP

+

-

-

+

+

+

-

UV

-

RAMP@

250kHz

OV

OC

+

-

20uA

-

+

-

+

-

+

Fault

Digital &

Peripheral Control

shut_down

Thermal

shut_down

-

+

-

+

+

-

5VSBY

+

-

BOOT

UGATE

PHASE

LGATE

OCSET

DDR_VTT

VDDQ

VREF_IN

GND

DS9644/A-01 August 2007

S3# S5# P12V 5VSBY VREE_OUT DDR_VTTSNS

www.richtek.com

7

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